Tabulator for type-writers.



J. B. HAMMOND.

TABULATOR FOR TYPE WRITERS.

APPLICATION IILED DEC. 20, 1906. RENEWED mu. 3, 1911.

1,041,071. Patented 001.15, 1912.

4 SHEETS-SHEET 1.

J. B. HAMMOND. TABULATOR FOR TYPE WRITERS. APPLIOATIQN FILED DEC. 20, 1906. RENEWED MAR. a, 1911.

1,041,071. Patenfedflct. 15, 1912 4 SHEBTSFSHEET 2.

. 1 041 07L Patented Oct.15,1912

J. B. HAMMOND.

TABULA'I'OR. FOR TYPE WRITERS. APPLICIATION FILED DEC. 20, 1906 Rminwnn 1mm, 1911.

4 SHEETS-SHEET 3Q J. B. HAMMOND.

TABULATOR FGR TYPE WRITERS. APPLIOATION FILED Me. 20, 1905. RENEWED MAR. s, 1911.

1,041,071. 1 Patented 001. 15, 1912.

4 SHEBTSSHEET 4.

' 'Raezzr UNITED sT TEs PATENT. F C

JAMES B. HAMMOND, OF NEW YORK, N. Y., A SSIGNOR TO THE HAMMOND TYPEWRITER CO., OF NEW YORK, N.'Y., A CORPORATIONQE NEW TABULATOB For. TYPE-WRITERS.

YORK.

Applicationfiled December 20, 1906, Serial mi $43,799. Renewed March a, 1911. Serial No; 612,102.

To all whom it may concern: Be it known that I, JAMES B. HAMMOND,

citizen of the United States, residing at New York city, New York, have invented certain new and useful Improvements in T abulators for Type Writers, of which the following is aspecification.

My invention relates to tabulators for typewriters and particularly the form .of machine well known as the Hammond- My present invention is animprovement or development upon that disclosed in an application for Letters Patent of theUnited States filed by me May 31, 1906, #319626;-

In carrying out my present invention, ,-I provide means whereby upon the depression of the tabulator key' the carriage willvbe I shifted to the'proper columnar position and also to the proper position insaid column corresponding to the denomination of thennmber to be printed. I also provide means whereby the machine may besetfor variable spacing under the action of the ordinary finger keys.

The; invention consists 'inthe features, combmation and arrangement of parts hereparts in section. Fig. 3is a rear view with parts of the machine omitted. Fig. 4: is'a detail view ofone of the column stops. Fig. 5 is a front view of the bank of tabulator keys and the devices associated therewith and connections leading therefrom, this view being taken fromthe front of the machine of which somepartsare omitted;

In these drawings, 1 indicates theanvil upon which the type shuttle works; '2 the ribbon spools; 3 thehammer and at the car-- riage, "these parts generally being of the ordinary well known construction. The escapement wheel 5 is also of the well known construction and it is 'connectedinthe usual manner with the carriage rack 6, by means of-the pawl andratchet 7, 8 and the rack pinion 9. ,Tl e escapement pawl 10 is carried by the hammer returning lever' 11 which is pivoted 0n the shaft 12,- of the escapement-mechanisin, the said lever havng ayoke portion 13, the cross bar 14 of which Js'a-dapted t-ov co-act with a variable stop 15 similar tothatdescribed in the application above referred-to, said stop having aseries'of teeth 16, which when the Specification ot I etters rarest}, Iatented'( ct.1 5, 1912.

member -15.is-set-in different positions will act-, to' arrest'themovement of the pawl carrying lever 11, at'cording to the, position (in which the-:member 15 .is set. and in this 1 way different spacing; movement of the ratchet will be effected -Thisniember 15 is pivoted to the frame at Mend it is connected through a link 18 and an arm 19 with a rock shaft 20, said-rock shaft being'joln'naled in the frame of the machine and having an .arm 21' fixed thereon. the pin 2 of which overlies a lever 23 which is freely pivoted on a shaft 24 and is operated by a vertically movable rod 25 sliding in hearings 'in the frame and operated through the action of a universal frame or plate '26 whichis pivoted at 27 vto standards 28 on the frame. :This universal plate or frame is arranged below the bank of tabnlator keys 29, the stems 2-10 of which are'of different lcngthsas shownin Fig. 5. so'thnt-the said keys will operate the said universal frame to different degrees and through it and the connections described thewariable stop will be setin different positions to arrest the backward .or setting movement of the lever 11 at different points for different spacing actions of the escapement wheel-and consequently-of the carriage according to the denomination of the key operated. 7

' The tabulator keys-are guided vertically through a frame 31 and are normally pressed upwardly by springs 32. stop pins 33 being provided to limit their upward movement and their normal position; It will be observed that the pawl 10 is thrown into and out of engagement with the teeth of the escapementwheel by means of an arm 34.having a slot receiving a in 35 from the said pawl. This arm 34 an its function are well known in the Hammond machine, it. being associated with the escapement lever 36 (which carries the dc-tent or teeth 37 to engage the escapement wheel when the pawl is released therefrom and which Jescape-. ment lever is operated fromthe trip frame of'the machine through the arm.38 Fig. 1 10 overlyingtlie forwardlybent end 39 of the said lever. In" the present case however, the arm 34 instead of being connectedrl'gidly with the escapement lever 36 is formed independently thereof and is capable of inde- '1 pendent movement. Further,' its slot is'ex;

"tended so that it will'exert control over the position .ofthe pawl 10 for a, greater distance around the circumference of the escapement wheel in order that the variable spacing actions may be secured; In the ordinary operation of'the finger keys where the ordinary letter space moyement is to be effected the slotted arm'3 i a lug or extensional. reaching under the edge of the escapem'ent lever 36 so that each time the escapement lever is-operated the arm 34 will also be operated to'withdraw the pawl 10 from the escapement whe'eland then thehammer lever-'11 carrying the said pawl will, under the action of its spring 4 2, move the pawl along the periphery of the; escapement wheel until it is opposite the next tooth, and then upon the release of the finger key and the return of the escapement lever to normal position, shown in Fig. 3, the pawl will engage the said tooth, and the escap'enient wheel,.under the action of the J varriage sp'ring contained in the drum 43, as ordinarily, will rotate through a distance of one letter space until arrested by the cross bar or yoke 13 of the hammer lever A which comes against a fixed stop 44 on the frn me. In the action justdescribed, due to the ordinary operation-of the letter keys it 'vVlli be understood that the escapement ratchet wheel is under thecontrol first of H the pawl 10 and-then the detent or tooth 37 N '01 the escapementFfleveri. It 'will be understood by those familiar'with the Hammond machine that whcn'the pawl 10 is released from the ratchet wheel, the hammer-is no longer under restraint from the lever 11,. and consequently flies forward under the, action of its spring, not shown, to make the? impression. \It 'will be understood, (if

course, that'the escapement action is' m'ade variable bythe setting 15, this permittingt he ing the carriage to different columnar posl movement independent of th escapement lever and this independent movement vis ef'- be operated without operating theescapethe carriage to have the necessary. move ment to bring it to the different columnar positions at which it will-be arrested by column stops 58 arranged one bar 59 fixed ing the pawl 10, to swing to different degrees around the shaft '12-untilits cross bar 13 str kes the particular stop or shoulder 16,- which is then in.-1ine therewith. For bring- 7G tions however, the operation of: the escape :ment is effectedwithoutmoving the. escape- :mentlever. 36,1f'or' 'i't will-be clear that theescapement wheel on the depression of a, tabulator key .for--nse ttingv the'carriage to a 'new icolum'nar position i must be free to rotate without being detained or controlled by .the detenttooth 37, and for this purpose, as

above described, the arm 34; is capable 'of L Y 'fected' through connections'leading' to the tabulator keys. For-this purpose a PlIIIOI presser screw 4 5;is earried'by anarm 46"so "as to overliethe' lug o'r'eicten'sion 4:1 'ofthe- $5 lever 34, 40.-"This arm {i6is-connected'with a rod 47," which is'p'ivoted'to an arm 48 on l 'a rock shaft 49 h avin'g itshearings in the framean'd connected through "armsi50, 51 withthe rock shaftl2w4fbefore described,

"which also 'has-itsbearingsin the'frame and- :which has fixed theretb' 'a -ar'm 52 engaged by a pin "531on1wlever. 5a which is pivota 1y hung on, the rock'shaft .20 'and is operated by afrod 55 sliding "vertically in the frame and operated by ia 'un'iversal frame or plate -56, pivoted to the standards '28 before den seribed,andfarrange' d tofbe operated by the tabulator. keys which havepins 57 oye'rlying thejsaid 'univer'sahfraine or plate so that 1 each time 'tlie'tabulator key is operated the universal plate-will be operated and through vertical rod 55 the rock shaft/l9 and connections described; the'slotted' lever 34 awilll ment lever and the' pa'WI/IO will-be released from the escapement wheel, and this will be free to rotate without being controlled or stopped bythe detent' 37." This will permit line with thejgblumriar stops on the carriage each time a, tabulator' key operated, 'said action bein'gefi'ected through the rod 47,

above described, which at its upper end, as.

shown in Fig. 2, is connected with "the tail piece. 63' of the stop, Each time therefore that tabulator key is operated the carriage will be! set free from its escapement'mecha- "iii'sm including the pawl I'Oar'id detent .37 j fandj the carriage will continue its movement I; untilone of the column stops 58 on the car of the variable'stop A ammer lever carry-' riage strikes the frame stop 60. Q? As above set forth, another action also re-= Y' to'which tabulator key isoperated, and as the tabulator-key's correspond'toft-he.differ-. ;ent denominations the setting-of the stop sults from the operation ofa tabulator key consisting in the setting of the variable stop lli'and the arresting thereby 0f the lever 11 with; thepawl" 10 in position to engage a new-tooth of the ratchet escapement wheel for the'varia-ble spacing action, and it will be observed from the relative arrangement of thetubulator keys with respect'to the-uni; versal frame or late 26't-hat thestop 15. will be set in di erent positions according.

' bythe operation of anyone of the keys willcause the pawl 10 to be set opposite the; proper tooth in the escapement wheel to secure the proper escapement acti on"corre--' spending to the denomination of the number to be printed, so that we have, upon the operation of any tabulator key a two-fold actionconsistiiig of the release of the carriage from the escapement and arresting the same at the proper column and the'setting of the esca ement mechanism to et the ro er spacing movement to locate the number to.

be printed at the proper position in said. columnaccording to its denomination, and

when the parts have been so set by depressez ing a tabulat-or'key and the said key is released the frame sto'p'GO is withdrawn from the column stop on the carriage and the pawl 10 immediately engages the ratchet escapem'ent wheel and moves forward therewith under the action of the carriage spring until the crossbar 14 of the hammer lever strikes the frame stop 44.- Fig. 1, whereupon the carriage is arrested in proper position in the column for printing the number ofa denomination corresponding to the particular tabulator key which has been depressed. Thelever 34, 4.0 is under tension of a spring 64 tending constantly 'to move the said lever in a direction so as to throw the pawl 10 into engagement with the escapement wheel.

-T 'he frame stop GOjsunde-r tension of the spring 65 tending constantly to withdraw e said stop out of. line with the column stops of. the carriage. The vertical rod 53- is-also' under tension of a, spring tending to keep it up in normal position.

. I provlde an arrangement whereby the machine may beset for different spacing actions of thecarriage when the ordinary letter keys are operated, and the. means for doing this" are associated with the -onnec lions' above described forming part of the tabnlator mechanism. For 1hi=: )urpose I provide a slide ()6 supported by screws (17 passing through slots (38 into theframe post 69, the said slide having acam incline 71) carried thereby engaging a pin 71 on the universal frame plate 26 before described. 'llr.- slide is provided witlra series of teeth 72 engaged. by a detent- 73 and it is prowidth with a 'scale marked from 1 to 7 coacting with a pointer- 74 on the frame. It will now be observed that by. grasping the finger piece-or handle 7 5 of the slide it may be moved in either one. direction or the other and setat-anyZof the oints marked on the lield by the detent. 73

engaging one of the-teeth .72., In this move-'- -ment the cam-7Q will; actagainst the pm 71 scale where it willbe;

with the result thatthe frame26 will either moveup or down and .through the connections described the variable stop'.will be set in the desired" position and there maintained. for securing the desired spacing action of *theesca pement .mechanism when the ordi-' na-ry letter keys are operated.

The connection between the arms 50, 51 consists as shown in Fig. 3, of a pin and slot- When the carriage isreleased fromits escape-ment mechanism and-"is free to run under the action of its spring to get into-differ its speed becontrolled order to avoid shock,.and for 'thisgpurpose I provide a brakeliba'nd T5 connectedwith theiframe at '76 and extending over a portionof the spring- 'dru'm of the carriage, the said hand-beingconnected with anarm 76" on the rock shaft 49lso that each time the 'carentcolumnar positions, it is desirable that rlage is. releasedito run fre .for-the different columns the brake band will be set Y I' against the-spring drum and a resistance to the movement therefore will be applied. I also provide means for preventing overthrow of the escap'ement wheel when 'it is running at its maximum speed as the result of. setting the carriage at different columnar positions, thismea-ns consisting simply of a spring- 7 7 fixed to the frame and.

v armg upon the ordinary esca-pement stop pawl 78. The ordinary function of this pawl is to prevent the escapemen't wheel from turning when thecmrriage. is returned to begin a new line, but 1n m rangement this stop pawl per 'orms the adpresent a r- 'ditional function of preventing the overthrow of the escapement wheel and centering the same in relationjto the pawl 10 and dctent 37 at the moment-that the carriage 1s arrested by the column stops. The spring 77 forces the tooth of the pawl to the bottom of .the tooth and thus accurately centers free and is likely to become displaced.

' Itwill be observed that the hammer hasa the 1':ltcl'iet'wl1eel, which at thismoment is pin 79 which is engaged-by the end-0f the riage be now. thrown back to the right to begin a new line the hammer might catch on and tear the'papen'. In order therefore to lock the hammer when the carriage reaches the end of its stroke -I provide a slide'79 the projection .or .plate 82v fixed adjustably I keys, substantially as described.

to the rack bar of the carriage by screws 83 contacts with 'the end of the stopslide 79. and the said stop will be moved'in front. of'the stem 80 of the hammer and thus prevent the same frqm moving forward even .though it be released by the operation of thekey; \Vhen the carriage is returned for a new line the spring 81 moves the; stop slide to withdraw thestop 80 from in front of the hammer stem. j The-column stops consist of fork shaped Ipieces adapted to engagethe' teeth of the bar 59, a spring 84 being arranged to hold the stop in posltion.

When the carriage is being set indifferent columnar positions the hammer is PIBX'IlfGl from printing by the ordinary hammer hook or detent 88, the tail piece 87 0f which is I raised by'the arm or lever 86 so'that the hook will engage the pin 89 of the 'hannncri: frame. The lever 86 is'operated'by-an-"armonthe shaft 24, these parts being-substantially the same as those described in an application filed by motor LettersPatenr. of the United. States, #319672, May 31/06;

I claim as my invention 1. In combination in a typewriter, a carriage, escapement mechanism, a variable spacing stop for the escapement mechanlsnr to set the parts according to the denomination of the number to be printed, tabul'ator keys connected to said stop releasing means operated by saidkeys and means for arresting thecarriage at diifenent columnar positions also controlled from said tabulator 2. In combination in a typewriter, a carriage, a hammer csca-pement mechanism, in cluding .an escapement wheel, a hammer lever, a pawl carried thereby, a variable spacing stop to control -said pawl'for variable spacing actions, means for releasing the ment mechanism, a carriage, a pivoted sto p 3 I x8, In combination in. typewriter, a car- 'escapement mechanism,'tabu 4 ing connections to the said stop, releasing carriage in different columnar pawl from the esca-pement wheel, tabulator keys 'connected with said means, connections from the tabulator keys to the said variable stop to set thesame, and means controlled from the tabulator keys for. arresting the positions, substantially as described. 4

3. In combination in a typewriter, escapefor variable spacing to'engageta pakrt ofhthe a or eys av- "mean's operated bysaidkeysand means for tabulatorkeys,'.substantially as described.

riage,j an 'eSCapementwheeI, an escapement lever, having a detent tooth toengageithe capement lever, conne'ctionslto the escapement lever from the, ordinary letter keys,

-'from' the escap'ement wheel independently connections for operating said means, a vaconne'ctions thereto from thetabulator-keys,

columnar positions and co'nnections thereto scribed. I

meanscompris ng an escapement wheel and pawl, denominat on stop means coacting positions; tabulaton keys'. and} connections therefrom to. the denomination stop and the .colitmnarfstop ;1 nea'ns, .substantially as describeda f riage, f an 'escap'ement wheel, a hammer, a hammer lever, a 'pawlfcarried thereby, a detracting movement of 'the said hammer. le-

releasing the pawl, connections theretov from scribed.

In combinatlonm a typewriterfla car- Y riage, denomination stop jmeans, columnar throwing the pawl' into and'out o :eng'agement with-theescapement wheel, said second ver when the ordinaryfletterke s are opersecond' lever independently of the escape ment lever, said. connections leading from scribed.

riage, denomination stop means, columnar stop means, tabulator keys for setting said arresting the carriage at difi'erent columnar posit ons with connections thereto fromthe 4.; In combination in'a typewriter, acctmeans for releasing the 'escapem ent pawl means for arresting the carriage at, different 'with' -the :esca'pementf means, means, for, ar} resting the carriage ind fferent columnar :1 6; In combinatiomin a typewriter, a car-.

the finger'keys", means for releasing the pawl independently of the escapeinent lever, tabu stop'means, t'pbplator keys for setting said denomination and ;.co lumnar stop means, an escapement wheel, a 'pawLan escapnient le-. ver, a second-levereha-vinga slottetgarm for 'lever'being operated by the'escapement leated, and conneptions'for operating the'said .escap'ementgwh'eel, a pawlengaging the escape'ment wheel andg cont'rolled by the esof the escapement 'lever, 'tjabula torfkeys with -;riable stop torj th'e escap'ement patvl to determme the denomination of the number p from the tabulator keys,-substantiallyas d e- 5.111? te em nts in a typewrite of the Hammond ftype, a' carriage, I escape'ment nomination"sto'p to limit, variably, the re- T ver with the paWL'an eScapemeDt lever for a denomination and columnar stop means, an

escapcment wheel, a pawl, an escapementl'e ver, a second lever having a slotted arm for throwing the pawl into and out of-en gagement with the escapement' wheel, said second lever'bein' -operated byfthe escapeinent lever when t e ordinary letter keys are operated and connections for operating the said second 'lever independently ofthe escapement lever, said connections'leading from the tabulator keys, said second lever when operated by the escapeme'nt lever being moved independently of said connections leading from the tabulat'or keys, substantially as described.

frame or plate operated by the said Ira S,

connect-ions leading therefrom to the enomination stop, a second universal frame or plate operated by the stud tabulator keys, and CODHGCUODS from said second -un1versal frame to the columnar stop means and to the tially as described. a

10. In combination in a typewriter, va carriage, escapement mechanism, denomination stop means, columnar stop means, means for releasing the escapeme'nt mechanism, a series of tabulator keys, a universal frame or late releasing means of the .escapement, substanoperated by the keys, connections eading therefrom to the denomination stop, a

second universal frame or plate operated by the said tabulator keys, and connectlons from said second universal frameto the columnar stop means and to the releasing means of the escapement, said connections including vertically extending rods 25, 55

and. rock-shafts, substantially as described.-

11. In combinatiom-in a typewriter, acarriage. eseapement mechanism, a denomination stop for the escapementto secure variable spacing-according to the denomination of the number to be printed, tabulator keys, connections between said keys and said stop means and means for setting said connections to adjust the stop for different spacing movements under the action of the ordinary finger keys, substantially as described.

12. In combination, in a typewriter, a carriage, escapement mechanism, 'a denomination stop for the escapement, tabulator keys, a "universal framet'o operated thereby, connections between said frame and the denomination stop, ordinary finger keys, having connections to the escapement and means for adjusti the said --universal frame in different positions to set the etc for variable spacing under the action of t e ordinary letter keys, substantially as described. 7

13. In combination in a typewriter, acarrisge, escapement mechanism, adenomination stop for the escapement, tabulator keys,

a "universal frame to be operated thereby,.

connections between said frame and the de-.

ing connections tothe ,esca'pement. an means different positions to set the stop-for variable spacing under the-actionpf the ordinary letter keys, said :means consistingof the slide havlnga for depressing the universal frame, substantially as described.

npawl,'a denonun'ation'stop, a columnar stop,

tabu'latorv keys, connections therefrom to the ranged 'to be operated by the escapement lever and having also independent movement, acolumnar stop, tabulator keys, connect-ions between the said tabulator keys and the columnar stop, the said controlling lever having a lug orprojection borne upon by the e'scapement lever and by a part of the said connectionswo the columnar stop, substantially as described.

16. In combination in a typewriter, a carriage, escapementv mechanism, the finger keys, a row of'tabulator keys arranged in front of the printing mechanism above the finger key and acrossthe machine substantially at the center thereof, a denomination stop coacting with. the escapement mechanism, a pair of universal frames extending below the tabulator keys, connections from said frames .to the denomination stop and the columnar stop respectively, a. slide extending across in front of the tabulator keys and connections from said slideto the denomination stop to set the same for variable spacing, substantially as, described.

lever for releasing the pawl from its ratchet,

ment lever from the keys, connections for operating the pawl releasing leve'r from its ratchet independently of. the escapement lever, and'means whereby the escapement lever, when-operated, .will operate the pawl releasing lever. substan ially as described.

18. In combination nith the escapement' wheel and its pawl, an escapement lever, jya

nomination stop, ordinary finger kegs ,hav-

70. for adprstm the said; universal frame-1n 14. In combination in a typewriter, a' car mage, an escapement wheel, an escapement v escapement lever, connections between said lever and the ordinary finger keys, a controlling lever for the escapement pawl ar- 17. In combination with the escapement wheel and "its pawl. an escapement lever, a

connections for operating the said escapeconnections for operating the said'escz'jx "e f gsqape'l i gnjt lei lever for releasing- 11d pawl irdm its ratchet, PiVOtd; 'axi hllyj 'tbihe fp'ivot fof the l ibr afit y as sc d- 1 ment lever-from thekeysyconnections Ql 'l testimpn yvhereoflil gfix' {my signaoperating the pawl' releasing lever frdm ifs him in p 'noejof t 'yvo 1 7itn 'ssjgs,. ratchet mdepen'dently "of 'the' fesc'apemnt "j 1eve-r,'.and means whereby the es'cpement Witnesses:'

- lever, wheniopemtemwm p Fm; 2.1m releasing 'lev er, 'said pawl -1 :e1egsi Copies q! thig patent hay tdive .i: e1its ea ch pi jfadiressing gbn imls io nerot Paten ts, -.'l wqshhigton ncl" 4 w 

